JP3343760B2 - Saddle-type seats for motorcycles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved saddle type seat for a motorcycle such as a motorcycle or a scooter.

[0002]

2. Description of the Related Art Motorcycles such as motorcycles and scooters are not shown, but a cushion body made of a foam material such as urethane material is installed on a seat bottom plate, and this is covered with a skin such as vinyl leather. A sheet is formed. A driver or a passenger occupies the seat configured as described above and drives.

[0003]

By the way, a motorcycle is suspended by floating the engine on an elastic bush or the like because the engine generates vibration during driving, but the vibration is still transmitted to the vehicle body. . Further, during driving, the motorcycle travels while cushioning the front wheel and the rear wheel against the unevenness of the road surface to reduce the impact, and the reaction vibration is transmitted to the vehicle body. As described above, in the motorcycle, the vibration is generated in the vehicle body, and the vibration is transmitted to the seat. Foam cushions absorb vibrations and reduce the vibrations experienced by the driver and passengers, but are still inadequate.

The present invention has been made in view of the above, and the vibration can be sufficiently absorbed by the super-absorbent elastic body, and the rider's body can be improved by reducing the vibration and the roll to be felt by the driver or the like. It is an object of the present invention to provide a saddle type seat for a motorcycle.

[0005]

According to the first aspect of the present invention, in order to achieve the above object, a cushion member made of urethane foam having a certain thickness is disposed on an upper portion of a seat bottom plate. The outer surface is covered with a skin such as vinyl leather, and a concave portion is formed in the seat bottom plate below the vehicle over the driver's seating area, and the concave portion is formed of a plate-shaped super-plastic made of a viscoelastic elastomer. An absorbent elastic body is provided, and one side lower surface of the super absorbent elastic body abuts on the upper surface of the concave portion and is fixed. Excluding the other upper surface of the super absorbent elastic material and the concave portion of the seat bottom plate. On the upper surface, a cushion body having a thickness greater than the thickness of the super-absorbent elastic body is superposed and laminated, the entire outer surface of the cushion body is covered with a skin, and both side faces of the cushion body in a cross-sectional view are described above. Frame hippo It is characterized in that formed so as to be on both sides substantially flush of.

In order to achieve the above object, a cushion body made of urethane foam having a certain thickness is disposed on an upper portion of a seat bottom plate, and the outer surface of the cushion body is made of vinyl leather. And the like, wherein the seat bottom plate is integrally provided on a frame cover of a motorcycle, and a recess is formed in the seat bottom plate below the vehicle over the driver's seating area. A plate-shaped superabsorbent elastic body made of a viscoelastic elastomer is provided, and one lower surface of the superabsorbent elastic body is fixed by contacting the lower surface of one side with the upper surface of the concave portion. On the side upper surface and the upper surface excluding the concave portion of the seat bottom plate, a cushion body having a thickness greater than the thickness of the superabsorbent elastic body is superposed and laminated, and the entire outer surface of the cushion body is covered with a skin. Both sides of the cross-sectional view of the Deployment body is characterized in that it has formed so as to be substantially flush with both sides of the frame cover.

According to the present invention, the super-absorbent elastic body on which the foam is layered in a mounted state is made of a viscoelastic urethane elastomer and has a shock absorbing power of about 95% and an elongation of about 500%. It is much softer and has much better vibration absorbing power than foams such as urethane. Therefore, vibrations and rolls felt by the driver and the like can be significantly reduced, and riding comfort is improved.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a straddle-type seat for a motorcycle according to the present invention will be described below with reference to FIGS. The motorcycle saddle type seat according to the present embodiment has a seat bottom plate 4 integrally provided on an upper portion of a frame cover 6 of the motorcycle, and the seat bottom plate 4 has a concave portion 4a which is recessed below the vehicle over a driver's seating area. Is formed, and a superabsorbent elastic body 2 made of a viscoelastic elastomer is laid in the recess 4a, and one lower surface of the superabsorbent elastic body 2 is fixed by contacting the lower surface of one side with the upper surface of the recess 4a, On the other upper surface of the superabsorbent elastic body 2 and on the upper surface of the seat bottom plate 4 excluding the recess 4a, a cushion body 3 thicker than the superabsorbent elastic body 2 is superposed and laminated. The entire outer surface is covered with a skin 5, and both side surfaces of the cushion body 3 in a cross-sectional view are formed so as to be substantially flush with both outer surfaces of the frame cover 6.

The cushion body 3 is a superabsorbent elastic body 2 having a plate-like cross section, which is laminated and fixed on the surface of the seat bottom plate 4.
And a foam 1 laminated and fixed on the surface of the superabsorbent elastic body 2. The superabsorbent elastic body 2 is made of a viscoelastic urethane elastomer, and has a shock absorbing power of about 95% and an elongation of about 500%. The super-absorbent elastic body 2 is characterized by being very soft and having a much better vibration absorbing power. Since this soft super-absorbent elastic body 2 is laid in the recessed portion 4a, it does not shift in the horizontal direction and has less lateral sway as compared with the case where it is laid on a flat bottom plate, and is expected to improve ride comfort. it can. Examples of such superabsorbent elastic body 2 include sorbosein (trade name). Furthermore, foam 1
Is formed by foaming using a material such as a urethane material according to the shape of the sheet.

Next, the effects of this embodiment will be described with reference to FIGS. 3 and 4 show the engine speed on the horizontal axis, FIG. 3 shows the vertical vibration amount on the seat surface on the vertical axis, and FIG. 4 shows the longitudinal vibration on the seat surface on the vertical axis. The amount of vibration of the sheet of the present invention is indicated by line A, and that of the conventional cushioning material made of only foam is indicated by line B. According to this, the vibration can be reduced only by the hatching.

Next, FIG. 5 shows the results of the evaluation while sitting on a sheet.
Indicated by lines. According to the present invention, the riding comfort is greatly improved as compared with the conventional one shown by the line B. In this way, the vibration can be well absorbed by the very soft super-absorbent elastic body 2, and the riding comfort can be greatly improved.

[0012]

As described above, according to the present invention, a concave portion is formed in the seat bottom plate below the vehicle over the driver's seating area, and the concave portion is formed of a viscoelastic elastomer in the concave portion. An absorbent elastic body is provided, and one side lower surface of the super absorbent elastic body is fixed by contacting the lower surface of the super absorbent elastic body with the upper surface of the concave portion. , A cushion body having a thickness greater than the thickness of the super-absorbent elastic body is superimposed and laminated, the entire outer surface of the cushion body is covered with a skin, and both side faces of the cushion body in a cross-sectional view are both side faces of a frame cover. Therefore, the vibration can be sufficiently absorbed by the super-absorbent elastic body. Therefore, there is an excellent effect that vibrations and rolls felt by the driver or the like can be reduced and riding comfort can be improved.

[Brief description of the drawings]

FIG. 1 is a partial longitudinal sectional side view showing an embodiment of a motorcycle saddle type seat according to the present invention.

FIG. 2 is an explanatory sectional view showing an embodiment of a saddle type seat for a motorcycle according to the present invention.

FIG. 3 is a graph comparing the amount of vibration in the vertical direction in the embodiment of the straddle-type seat for a motorcycle according to the present invention.

FIG. 4 is a graph comparing the amount of vibration in the front-rear direction in the embodiment of the straddle-type seat for a motorcycle according to the present invention.

FIG. 5 is a comparison graph of ride comfort in the embodiment of the saddle-ride type seat for a motorcycle according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Foam body 2 Super-absorbent elastic body 3 Cushion body 4 Seat bottom plate 4a Depression 5 Skin 6 Frame cover

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B62J 1/00-1/02 B62J 1/12

Claims (2)

(57) [Claims] 1. A straddle-type seat for a motorcycle in which a cushion body made of urethane foam having a certain thickness is disposed on an upper portion of a seat bottom plate, and an outer surface of the cushion body is covered with a skin such as vinyl leather. A concave portion is formed in the seat bottom plate below the vehicle over the driver's seating area, and a plate-shaped superabsorbent elastic body made of a viscoelastic elastomer is disposed in the concave portion. The lower surface of one side of the body is fixed by abutting on the upper surface of the recess, and the upper surface of the superabsorbent elastic body on the other upper surface and the upper surface of the seat bottom plate excluding the recess is provided. A cushion body having a thickness larger than the thickness was superposed and laminated, the entire outer surface of the cushion body was covered with a skin, and both side faces of the cushion body in a cross-sectional view were formed so as to be substantially flush with both side faces of the frame cover. It is characterized by Straddle-type seat for a motorcycle that. 2. A straddle-type seat for a motorcycle, wherein a cushion body made of urethane foam having a certain thickness is disposed on an upper portion of a seat bottom plate, and an outer surface of the cushion body is covered with a skin such as vinyl leather. The above-mentioned seat bottom plate is integrally provided on a frame cover of a motorcycle, a concave portion is formed in the seat bottom plate below the vehicle over a driver's seating area, and a plate-like super-plastic member made of a viscoelastic elastomer is formed in the concave portion. An absorbent elastic body is provided, and one side lower surface of the super absorbent elastic body abuts on the upper surface of the concave portion and is fixed. Excluding the other upper surface of the super absorbent elastic material and the concave portion of the seat bottom plate. On the upper surface, a cushion body having a thickness greater than the thickness of the superabsorbent elastic body is superposed and laminated, the entire outer surface of the cushion body is covered with a skin, and both side faces of the cushion body in a cross-sectional view are described above. Fret Straddle-type seat for a motorcycle characterized by being formed so as to be substantially flush with both sides of Mukaba.